diff options
Diffstat (limited to 'src/mesa/drivers/dri/r300/pixel_shader.h')
-rw-r--r-- | src/mesa/drivers/dri/r300/pixel_shader.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/pixel_shader.h b/src/mesa/drivers/dri/r300/pixel_shader.h new file mode 100644 index 0000000000..07c8449734 --- /dev/null +++ b/src/mesa/drivers/dri/r300/pixel_shader.h @@ -0,0 +1,94 @@ +#ifndef __PIXEL_SHADER_H__ +#define __PIXEL_SHADER_H__ + +#include "r300_reg.h" + + +/* INSTR 0 */ + +#define PFS_OP_MAD 0 +#define PFS_OP_DP3 1 +#define PFS_OP_DP4 2 +#define PFS_OP_MIN 4 +#define PFS_OP_MAX 5 +#define PFS_OP_CMP 8 +#define PFS_OP_FRC 9 +#define PFS_OP_OUTC_REPL_ALPHA 10 + +/* "or" these with arg0 value to negate or take absolute value of an argument */ +#define PFS_ARG_NEG (1<<5) +#define PFS_ARG_ABS (1<<6) + +#define MAKE_PFS_INSTR0(op, arg0, arg1, arg2, flags) \ + ( ((op)<<23) \ + | ((arg0)<<R300_FPI0_ARG0C_SHIFT) \ + | ((arg1)<<R300_FPI0_ARG1C_SHIFT) \ + | ((arg2)<<R300_FPI0_ARG2C_SHIFT) \ + | (flags) \ + ) + +#define PFS_FLAG_X 1 +#define PFS_FLAG_Y 2 +#define PFS_FLAG_XY 3 +#define PFS_FLAG_Z 4 +#define PFS_FLAG_XZ 5 +#define PFS_FLAG_YZ 6 +#define PFS_FLAG_ALL 7 +#define PFS_FLAG_NONE 0 + +#define EASY_PFS_INSTR0(op, arg0, arg1, arg2) \ + MAKE_PFS_INSTR0(PFS_OP_##op, \ + R300_FPI0_ARGC_##arg0, \ + R300_FPI0_ARGC_##arg1, \ + R300_FPI0_ARGC_##arg2, \ + 0) + +/* INSTR 1 */ + +#define PFS_FLAG_CONST (1<<5) + +#define MAKE_PFS_INSTR1(dstc, src0, src1, src2, reg, output) \ + ((src0) | ((src1) << R300_FPI1_SRC1C_SHIFT) \ + | ((src2)<<R300_FPI1_SRC2C_SHIFT) \ + | ((dstc) << R300_FPI1_DSTC_SHIFT) \ + | ((reg) << 23) | ((output)<<26)) + +#define EASY_PFS_INSTR1(dstc, src0, src1, src2, reg, output) \ + MAKE_PFS_INSTR1(dstc, src0, src1, src2, PFS_FLAG_##reg, PFS_FLAG_##output) + +/* INSTR 2 */ + +/* you can "or" PFS_ARG_NEG with these values to negate them */ + +#define MAKE_PFS_INSTR2(op, arg0, arg1, arg2, flags) \ + (((op) << 23) | \ + ((arg0)<<R300_FPI2_ARG0A_SHIFT) | \ + ((arg1)<<R300_FPI2_ARG1A_SHIFT) | \ + ((arg2)<<R300_FPI2_ARG2A_SHIFT) | \ + (flags)) + +#define EASY_PFS_INSTR2(op, arg0, arg1, arg2) \ + MAKE_PFS_INSTR2(R300_FPI2_OUTA_##op, \ + R300_FPI2_ARGA_##arg0, \ + R300_FPI2_ARGA_##arg1, \ + R300_FPI2_ARGA_##arg2, \ + 0) + + +/* INSTR 3 */ + +#define PFS_FLAG_NONE 0 +#define PFS_FLAG_REG 1 +#define PFS_FLAG_OUTPUT 2 +#define PFS_FLAG_BOTH 3 + +#define MAKE_PFS_INSTR3(dstc, src0, src1, src2, flags) \ + ((src0) | ((src1) << R300_FPI1_SRC1C_SHIFT) \ + | ((src2)<<R300_FPI1_SRC2C_SHIFT) \ + | ((dstc) << R300_FPI1_DSTC_SHIFT) \ + | ((flags) << 23)) + +#define EASY_PFS_INSTR3(dstc, src0, src1, src2, flag) \ + MAKE_PFS_INSTR3(dstc, src0, src1, src2, PFS_FLAG_##flag) + +#endif |